[Cluster-devel] cluster/dlm/tests/usertest Makefile alternate- ...

[teigland at sourceware.org]

CVSROOT:	/cvs/cluster
Module name:	cluster
Changes by:	teigland at sourceware.org	2007-01-31 18:47:41

Modified files:
	dlm/tests/usertest: Makefile 
Added files:
	dlm/tests/usertest: alternate-lvb.c 

Log message:
	test program like gfs's 'alternate' but using an lvb instead of a file.
	nodes take turns incrementing the counter in the lvb

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/dlm/tests/usertest/alternate-lvb.c.diff?cvsroot=cluster&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/dlm/tests/usertest/Makefile.diff?cvsroot=cluster&r1=1.7&r2=1.8

/cvs/cluster/cluster/dlm/tests/usertest/alternate-lvb.c,v  -->  standard output
revision 1.1
--- cluster/dlm/tests/usertest/alternate-lvb.c
+++ -	2007-01-31 18:47:41.809138000 +0000
@@ -0,0 +1,177 @@
+/******************************************************************************
+*******************************************************************************
+**
+**    Copyright 2001 Sistina Software, Inc.
+**
+**    This is free software released under the GNU General Public License.
+**    There is no warranty for this software.  See the file COPYING for
+**    details.
+**
+*******************************************************************************
+******************************************************************************/
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+#include <syslog.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/un.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/errno.h>
+
+#include "libdlm.h"
+
+#define die(fmt, args...) \
+do \
+{ \
+  fprintf(stderr, "%s: ", prog_name); \
+  fprintf(stderr, fmt, ##args); \
+  exit(EXIT_FAILURE); \
+} \
+while (0)
+
+static char *prog_name;
+static dlm_lshandle_t *dh;
+static int verbose;
+
+static struct dlm_lksb lksb;
+static char lvb[32];
+
+int main(int argc, char *argv[])
+{
+	unsigned long long offset;
+	unsigned long long num, last_num = 0;
+	unsigned int id, clients, sleep = 0;
+	unsigned long long skip = 0;
+	char *name;
+	int rv;
+
+	prog_name = argv[0];
+	verbose = 0;
+
+	if (argc < 5)
+		die("name offset id clients [sleep]\n");
+
+	name = argv[1];
+	offset = atoll(argv[2]);
+	id = atoi(argv[3]);
+	clients = atoi(argv[4]);
+
+	if (argc > 5)
+		sleep = atoi(argv[5]);
+
+	printf("Joining \"alternate\" lockspace...\n");
+
+	dh = dlm_create_lockspace("alternate", 0600);
+	if (!dh) {
+		printf("dlm_create_lockspace error %d %d\n", (int) dh, errno);
+		return -ENOTCONN;
+	}
+
+	rv = dlm_ls_pthread_init(dh);
+	if (rv < 0) {
+		printf("dlm_ls_pthread_init error %d %d\n", rv, errno);
+		dlm_release_lockspace("alternate", dh, 1);
+		return rv;
+	}
+
+	memset(&lksb, 0, sizeof(lksb));
+	memset(&lvb, 0, sizeof(lvb));
+	lksb.sb_lvbptr = lvb;
+
+	if (verbose)
+		printf("request NL\n");
+
+	rv = dlm_ls_lock_wait(dh, LKM_NLMODE, &lksb, LKF_VALBLK,
+			      name, strlen(name), 0, NULL, NULL, NULL);
+
+	while (1) {
+		if (verbose)
+			printf("convert NL->PR\n");
+
+		rv = dlm_ls_lock_wait(dh, LKM_PRMODE, &lksb,
+				      LKF_VALBLK | LKF_CONVERT,
+			      	      name, strlen(name),
+				      0, NULL, NULL, NULL);
+		if (rv)
+			printf("lock1 error: %d %d\n", rv, lksb.sb_status);
+
+		memcpy(&num, &lvb, sizeof(num));
+
+		if (verbose)
+			printf("read lvb %llu\n", num);
+
+		/* it's our turn */
+		if (num % clients == id) {
+			if (last_num && last_num + clients != num + 1)
+				die("bad: num %llu last_num %llu\n",
+				    num, last_num);
+
+			if (verbose)
+				printf("convert PR->EX\n");
+
+			rv = dlm_ls_lock_wait(dh, LKM_EXMODE, &lksb,
+				      	      LKF_VALBLK | LKF_CONVERT,
+					      name, strlen(name),
+					      0, NULL, NULL, NULL);
+			if (rv)
+				printf("lock2 error: %d %d\n", rv,
+					lksb.sb_status);
+
+			memcpy(&num, &lvb, sizeof(num));
+			if (num % clients != id)
+				die("bad2: num %llu\n", num);
+
+			num++;
+
+			memcpy(&lvb, &num, sizeof(num));
+			printf("%llu %llu\n", num, skip);
+
+			if (verbose)
+				printf("convert EX->NL\n");
+
+			rv = dlm_ls_lock_wait(dh, LKM_NLMODE, &lksb,
+				      	      LKF_VALBLK | LKF_CONVERT,
+					      name, strlen(name),
+					      0, NULL, NULL, NULL);
+			if (rv)
+				printf("lock3 error: %d %d\n", rv,
+					lksb.sb_status);
+
+			last_num = num;
+			skip = 0;
+		} else {
+			skip++;
+
+			if (verbose)
+				printf("convert PR->NL, skip %llu\n", skip);
+
+			rv = dlm_ls_lock_wait(dh, LKM_NLMODE, &lksb,
+				      	      LKF_VALBLK | LKF_CONVERT,
+					      name, strlen(name),
+					      0, NULL, NULL, NULL);
+			if (rv)
+				printf("lock4 error: %d %d\n", rv,
+					lksb.sb_status);
+		}
+
+		if (sleep)
+			usleep(sleep);
+	}
+
+	dlm_ls_unlock_wait(dh, lksb.sb_lkid, 0, &lksb);
+	dlm_release_lockspace("alternate", dh, 1);
+
+	exit(EXIT_SUCCESS);
+}
+
--- cluster/dlm/tests/usertest/Makefile	2007/01/09 14:17:37	1.7
+++ cluster/dlm/tests/usertest/Makefile	2007/01/31 18:47:41	1.8
@@ -12,7 +12,7 @@
 top_srcdir = ../../..
 UNINSTALL=${top_srcdir}/scripts/uninstall.pl
 
-BINARIES=dlmtest asttest lstest pingtest lvb dlmtest2 flood
+BINARIES=dlmtest asttest lstest pingtest lvb dlmtest2 flood alternate-lvb
 
 all: $(BINARIES)
 
@@ -32,6 +32,9 @@
 dlmtest2: dlmtest2.c
 	$(CC) $(CFLAGS) -o $@ $< -ldlm -lpthread
 
+alternate-lvb: alternate-lvb.c
+	$(CC) $(CFLAGS) -o $@ $< -ldlm -lpthread
+
 flood: flood.c
 	$(CC) $(CFLAGS) -o $@ $< -ldlm -lpthread